A Monograph of the Formicidae of South Africa. 545 



rugose ; abdomen finely reticulate ; petiole reticulate-rugose. Wings 

 long. Nearly black, antennae and legs brown. Pilosity, etc., as in 

 the $. 



" Kammagas, Little Namaland, in a large nest on an orange-bush. 

 (Schultze). The carton nest is 36 cm long by 26 cm. wide. . . ." 



Sub-genus ATOPOGYNE, Forel. 



Bull. Soc. Vaud. Sc. Nat., vol. 47, p 343, 1911. 



" Characterised by the depressed head, rectangular or trapezoidal, 

 by the straight mandibles with a long masticatory margin, and by the 

 elongate and anteriorly narrowed thorax, all these characters applying 

 only to the $ ." 



C. (sub-gen. Atopogtne) Welmani, Forel, race eetusa, Santschi. 



Ann. Soc. Ent. Belg., vol. 53, p. 64, $ , 1909. 

 (Race) Ann. Soc. Ent. France, vol. 84, p. 500, $ , $ ,<J, 1916. 



^ . 3 - 2-4 mm. Head bright red (burnt sienna or brick-red), 

 thorax red or brownish-red, becoming progressively darker towards 

 the petiole, abdomen black, legs brownish-red, the first 4 tarsal joints 

 paler, antennae brownish-red, the club paler. Pilosity absent, except 

 a few hairs on the clypeus and abdomen. Pubescence exceedingly 

 fine and sparse, more abundant on the abdomen than elsewhere. 

 Mesopleura reticulate-punctate and dull, sides of the epinotum finely 

 and longitudinally rugulose and moderately shining, the rest of the 

 thorax, the head and the petiole very smooth and shining, finely and 

 sparsely punctu reel. Abdomen smooth, shining, impunctate. Clypeus, 

 frontal area and the anterior third of the sides of the head longi- 

 tudinally striate or aciculate. Mandibles longitudinally striate, 

 4-dentate. Head, excluding the mandibles, one sixth longer than wide, 

 rectangular, the sides subparallel, the posterior margin widely and 

 shallowly concave, the posterior angles feebly rounded. The scape 

 does not extend beyond the posterior fourth of the head, 3rd-7th 

 joints of the flagellum wider than long, the club 3-jointed. Eyes 

 flattened, placed at the middle of the sides. Median area of clypeus 

 fairly convex lengthwise, the anterior margin straight. Pronotum 

 rounded at the sides, the anterior face rather steep. Pro-mesonotal 

 suture faintly defined in the middle, more strongly defined at the 

 sides. Mesonotum at least one-third longer than wide at the base, 

 with a trace of a very obtuse median carina in front ; the declivity 

 fairly steep, and rounded above. Meso-epinotal suture deep. Dorsum 



